Monochrome photographic postcard from the Zoological Society of London series, showing an Undulated Hornbill perched on a horizontal bar, facing left. The bird's massive curved pale bill, dark plumage, and scaled wing feathers are sharply rendered against a soft-focus background. The photograph is by D. Seth-Smith, F.Z.S.

• Caption: "No. 26. Undulated Hornbill"
• Photographer: D. Seth-Smith, F.Z.S.
• Publisher: Zoological Society of London, Regent's Park, N.W.
• Status: Unposted